/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchyDefines.h
This is rig element types that we support This can be used as a mask so supported as a bitfield
enum ERigElementType { None, Bone = 0x001, Null = 0x002, Space = Null, Control = 0x004, Curve = 0x008, RigidBody = 0x010, Reference = 0x020, Last = 0x040, All = Bone | Null | Control | Curve | RigidBody | Reference, ToResetAfterConstructionEvent = Bone | Control | Curve, }